LDPC-Coded Generalized Frequency Division Multiplexing for Intensity-Modulated Direct-Detection Optical Systems

Dong Guo; Wei Zhang; Feng Tian; Jianyang Shi; Kaihui Wang; Miao Kong; Junwen Zhang; Kai Lv; Deng'ao Li; Xiaolong Pan; Xiangjun Xin

doi:10.1109/JPHOT.2019.2902607

IEEE Photonics Journal (Jan 2019)

LDPC-Coded Generalized Frequency Division Multiplexing for Intensity-Modulated Direct-Detection Optical Systems

Dong Guo,
Wei Zhang,
Feng Tian,
Jianyang Shi,
Kaihui Wang,
Miao Kong,
Junwen Zhang,
Kai Lv,
Deng'ao Li,
Xiaolong Pan,
Xiangjun Xin

Affiliations

Dong Guo: ORCiD; School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing, China
Wei Zhang: China Academy of Space Technology, Beijing, China
Feng Tian: ORCiD; School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing, China
Jianyang Shi: ORCiD; Key Laboratory for Information Science of Electromagnetic Waves (MoE), Department of Communication Science and Engineering, Fudan University, Shanghai, China
Kaihui Wang: ORCiD; Key Laboratory for Information Science of Electromagnetic Waves (MoE), Department of Communication Science and Engineering, Fudan University, Shanghai, China
Miao Kong: ORCiD; Key Laboratory for Information Science of Electromagnetic Waves (MoE), Department of Communication Science and Engineering, Fudan University, Shanghai, China
Junwen Zhang: ORCiD; ZTE (TX), Inc., Morristown, NJ, USA
Kai Lv: ORCiD; School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing, China
Deng'ao Li: College of Information Engineering, Taiyuan University of Technology, Taiyuan, China
Xiaolong Pan: ORCiD; School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing, China
Xiangjun Xin: School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing, China

DOI: https://doi.org/10.1109/JPHOT.2019.2902607
Journal volume & issue: Vol. 11, no. 2
pp. 1 – 15

Abstract

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In this paper, a low-density parity check (LDPC) coded GFDM with high-level modulation scheme is proposed for more flexible and advanced multicarrier modulation in intensity-modulated/direct-detection (IM/DD) optical systems. Then, we experimentally demonstrate an LDPC-coded GFDM with 16-quadrature amplitude modulation (16QAM) system transmitted over 20-km standard single-mode fiber at different symbol rates to verify the applicability of the proposed scheme. Furthermore, the proposed scheme with trellis-coded 32-quadrature amplitude modulation (TC-32QAM) has also been investigated and compared with the bit error rate (BER) performance with 16QAM-modulated condition. The results indicate that TC-32QAM-modulated GFDM method has a better performance than the 16QAM-modulated case. But with LDPC coding module added, the performance of the proposed system with TC-32QAM gets worse than that with 16QAM modulation. We also experimentally compare the proposed LDPC-coded scheme and the Turbo-coded scheme in the QAM-modulated GFDM IM/DD optical system. The results show the LDPC-coded optical (LCO-) GFDM scheme has lower power penalties and better BER performance. Moreover, the proposed LCO-GFDM scheme is applied in multiband transmission by optical simulation software, and the results show that multiband LCO-GFDM scheme has a better performance than that of LCO-OFDM scheme.

Published in IEEE Photonics Journal

ISSN: 1943-0655 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics; Science: Physics: Optics. Light
Website: http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=4563994

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